package cn.tedu.sp06.controller;

import cn.tedu.sp01.pojo.Item;
import cn.tedu.sp01.pojo.Order;
import cn.tedu.sp01.pojo.User;
import cn.tedu.web.util.JsonResult;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.thoughtworks.xstream.mapper.ClassAliasingMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.ListableBeanFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.client.RestTemplate;

import java.util.List;

@RestController
@Slf4j
public class RibbonController {

    @Autowired
    private RestTemplate restTemplate;

    //获取商品列表
    @HystrixCommand(fallbackMethod = "getItemFB")
    @GetMapping("/item-service/{orderId}")
    public JsonResult<List<Item>> getItem(@PathVariable String orderId){
        // 调用远程的商品服务，获取商品列表 http://localhost:8001/{orderId}
        //{1} -RestTemplate 定义的占位符格式
        //第三个参数是对占位符进行填充的数据
        return restTemplate.getForObject("http://item-service/{1}",
                JsonResult.class,orderId);
    }

    //减少商品库存
    @HystrixCommand(fallbackMethod = "decreaseNumberFB")
    @PostMapping("/item-service/deceaseNumber")
    public JsonResult<?> decreaseNumber(@RequestBody List<Item> items){
        //调用远程服务路径： http://localhost:8001/decreaseNumber
        return restTemplate.postForObject("http://item-service/decreaseNumber",
                items,JsonResult.class);//items  提交的协议体数据  会把
    }

    //-------------------------------------------------------------------

    @HystrixCommand(fallbackMethod = "getUserFB")
    @GetMapping("/user-service/{userId}")
    public JsonResult<User> getUser(@PathVariable Integer userId) {
        return restTemplate.getForObject("http://user-service/{1}", JsonResult.class, userId);
    }

    @HystrixCommand(fallbackMethod = "addScoreFB")
    @GetMapping("/user-service/{userId}/score")
    public JsonResult<?> addScore(
            @PathVariable Integer userId, Integer score) {
        return restTemplate.getForObject("http://user-service/{1}/score?score={2}", JsonResult.class, userId, score);
    }

	//------------------------------------------------------------------

    @HystrixCommand(fallbackMethod = "getOrderFB")
    @GetMapping("/order-service/{orderId}")
    public JsonResult<Order> getOrder(@PathVariable String orderId) {
        return restTemplate.getForObject("http://order-service/{1}", JsonResult.class, orderId);
    }

    @HystrixCommand(fallbackMethod = "addOrderFB")
    @GetMapping("/order-service")
    public JsonResult<?> addOrder() {
        return restTemplate.getForObject("http://order-service/", JsonResult.class);
    }

    /////////////////////////////////////////////////////////////////////////////////////////////////////////

    //降级方法的参数和返回值，需要和原始方法一致，方法名任意
    //获取商品列表
    public JsonResult<List<Item>> getItemFB(String orderId){
        return JsonResult.err().msg("获取商品列表失败");
    }

    //减少商品库存
    public JsonResult<?> decreaseNumberFB(List<Item> items){
        return JsonResult.err().msg("减少商品库存失败");
    }

    //-------------------------------------------------------------------

    public JsonResult<User> getUserFB(Integer userId) {
        return JsonResult.err().msg("获取用户失败");
    }

    public JsonResult<?> addScoreFB(Integer userId, Integer score) {
        return JsonResult.err().msg("增加积分失败");
    }

    //------------------------------------------------------------------

    public JsonResult<Order> getOrderFB(String orderId) {
        return JsonResult.err().msg("获取订单失败");
    }

    public JsonResult<?> addOrderFB() {
        return JsonResult.err().msg("添加订单失败");
    }

}
